Translation guide
In Japanese, the general term for celestial bodies is 天体 (tentai). However, in everyday conversation, people usually refer to specific objects like stars, planets, or the moon rather than using the abstract term. This guide covers how to express the concept naturally depending on context.
Referring to astronomical objects in a scientific or formal context.
The standard translation for 'celestial bodies'. Used in astronomy, science, and formal writing. Not typically used in casual conversation.
天体観測が趣味です。
Observing celestial bodies is my hobby.
この望遠鏡でさまざまな天体を見ることができます。
You can see various celestial bodies with this telescope.
Talking about what you see in the night sky in casual conversation.
Literally 'star', but often used broadly to refer to any shining celestial object, including planets and sometimes even the moon. This is the most natural word in daily conversation.
今夜は星がきれいだね。
The stars are beautiful tonight, aren't they?
あの明るい星は何？
What's that bright star?
A natural phrase meaning 'stars and the moon', often used when talking about the night sky in general.
星や月を眺めるのが好きです。
I like gazing at the stars and the moon.
Using a more elegant or traditional term for celestial objects.
Refers to the celestial sphere or the heavens in a classical sense. Rarely used in modern conversation; appears in poetry or historical texts.
天球に輝く星々。
Stars shining in the celestial sphere.
An archaic term for constellations or stars, often used in astrology or classical literature. Not used in modern Japanese.
天体 is a formal, scientific term. In everyday conversation, 星 is much more common and can refer to planets, stars, and even satellites. If you want to sound natural, use 星 unless you are in an academic or technical setting.
Directly translating 'celestial bodies' as 天体 in casual speech can sound stiff or overly technical. Instead, use 星 or describe what you specifically see (e.g., 金星 for Venus, 流れ星 for shooting star).
To read the course of the stars.